BP Amoco unveiled a plan yesterday to spiff up its image and portray itself as a progressive, eco-friendly energy company. A new motto, “Beyond Petroleum,” is accompanied by a new sunburst logo designed to evoke thoughts of the company’s investments in solar energy. The company will open up a line of new gas stations that are powered partly by solar panels and that feature Internet access for customers. Some enviros aren’t buying the company’s green makeover. “BP spent more on their logo this year than they did on renewable energy last year,” said a Greenpeace spokesperson. “A more appropriate logo would be a miserable polar bear on a melting ice pack.”